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Old 31st January 2013, 10:25 PM   #101
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Quote:
Originally Posted by merlin el mago View Post
More or less what's the consensus schematic or ideas to make the headphone amp?
After consensus about voltages and powers to drive headphones.
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Old 31st January 2013, 10:49 PM   #102
tinitus is offline tinitus  Europe
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is there such a thing as 'autoformer-cathode-output' ....(single ended) ?
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Old 31st January 2013, 10:57 PM   #103
iko is offline iko  Canada
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Quote:
Originally Posted by tinitus View Post
is there such a thing as 'autoformer-cathode-output' ....(single ended) ?
What do you mean?
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Old 31st January 2013, 11:02 PM   #104
tinitus is offline tinitus  Europe
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I mean using autoformer instead of normal OPT
and connect to cathode for low impedance
and maybe this way use ordinary toroid with good result

I know it could work as a circlotron design, but could it also be done as single ended ?
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Old 31st January 2013, 11:13 PM   #105
tinitus is offline tinitus  Europe
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I guess not

might be more like autoformer phase splitter


I guess it's back to ccs parafeed....with autoformer output
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Old 31st January 2013, 11:50 PM   #106
cotdt is offline cotdt  United States
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Let's set the requirement for power output to be 2W, and the ability to drive all headphones. The voltage swing issue can be dealt with by selecting the right transformer.
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Old 1st February 2013, 12:05 AM   #107
iko is offline iko  Canada
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2W into 8 ohms?
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Old 1st February 2013, 12:16 AM   #108
cotdt is offline cotdt  United States
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Quote:
Originally Posted by ikoflexer View Post
2W into 8 ohms?
2W into any impedance via impedance matching. The 4P1L tubes can do it.
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Old 1st February 2013, 12:37 AM   #109
stajo is offline stajo  Sweden
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Quote:
Originally Posted by cotdt View Post
2W into any impedance via impedance matching. The 4P1L tubes can do it.
Good for you, if you have the demands. Take care of your ears,

Staffan
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Old 1st February 2013, 12:55 AM   #110
cotdt is offline cotdt  United States
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Quote:
Originally Posted by stajo View Post
A normal amp.
The gain would be too low to power speakers. With another source of gain, then it can.
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